Boston

$411+ Cheap flights from Sofia (SOF) to Boston (BOS)

SOF — BOS
Dec 7 — Dec 141
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1. Tell us where you want to go

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Cheap flight deals from Sofia to Boston

Cheapest flights from Sofia to Boston

Fri 12/1110:20 pm -
2 stops53h 10m
Sun 1/249:10 pm -
1 stop33h 30m
Deal found 11/2$652
Sat 12/127:00 pm -
2 stops31h 55m
Sun 1/249:10 pm -
1 stop33h 30m
Deal found 11/2$654
Sun 12/136:00 am -
2 stops40h 05m
Sun 1/249:10 pm -
1 stop33h 30m
Deal found 11/2$659
Wed 12/98:15 pm -
2 stops25h 50m
Sun 1/249:10 pm -
1 stop33h 30m
Deal found 11/2$667
Sat 12/127:00 pm -
2 stops31h 55m
Mon 1/255:15 pm -
1 stop13h 25m
Deal found 11/2$674
Sat 12/127:00 pm -
2 stops31h 55m
Tue 1/265:15 pm -
1 stop13h 40m
Deal found 11/2$681
Sun 12/139:00 am -
2 stops17h 55m
Mon 1/255:15 pm -
1 stop13h 25m
Deal found 11/2$686
Wed 12/98:15 pm -
2 stops25h 50m
Mon 1/255:15 pm -
1 stop13h 25m
Deal found 11/2$687
Wed 12/98:15 pm -
2 stops25h 50m
Tue 1/265:15 pm -
1 stop13h 40m
Deal found 11/2$693
Thu 12/101:50 pm -
2 stops31h 50m
Wed 1/209:10 pm -
1 stop18h 25m
Deal found 11/2$698
Fri 12/1111:55 am -
2 stops34h 00m
Mon 1/255:15 pm -
1 stop13h 25m
Deal found 11/2$700
Thu 12/101:50 pm -
2 stops31h 50m
Tue 1/265:15 pm -
1 stop13h 40m
Deal found 11/2$705

Find flight deals from Sofia to Boston

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$652
(Kiwi.com)

One-way from

$411
(Kiwi.com)

Popular in

October

Cheapest in

November

Average price

$675
Provider with most accurate pricing for Sofia-Boston Logan Intl flight deals.
Provider most trusted by Cheapflights users for Sofia-Boston Logan Intl flights.
From Sofia to Boston Logan Intl
One-way flight from Sofia to Boston Logan Intl
Highest demand for flights based on searches. 3% potential increase in price ($31 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Sofia to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaBoston

SOF Sofia - BOS Boston Logan Intl

SOFBOS

Sofia

Sat 1/23

9:15 pm-7:55 pm

3 stops53h 40m

Boston Logan Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$411

SofiaBoston

SOF Sofia - BOS Boston Logan Intl

SOFBOS

Sofia

Thu 12/3

4:45 pm-2:55 pm

3 stops53h 10m

Boston Logan Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$429

SofiaBoston

SOF Sofia - BOS Boston Logan Intl

SOFBOS

Sofia

Tue 11/17

2:45 pm-3:00 pm

3 stops55h 15m

Boston Logan Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$449

SofiaBoston

SOF Sofia - BOS Boston Logan Intl

SOFBOS

Sofia

Wed 11/18

2:10 pm-3:00 pm

2 stops31h 50m

Boston Logan Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$472

SofiaBoston

SOF Sofia - BOS Boston Logan Intl

SOFBOS

Sofia

Fri 11/20

10:50 pm-5:50 pm

3 stops26h 00m

Boston Logan Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$502
Quickest round-trip

SofiaBoston

SOF Sofia - BOS Boston Logan Intl

SOFBOS

Sofia

Sat 11/21

9:30 am-6:05 pm

1 stop15h 35m

Boston Logan Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$808

SofiaBoston

SOF Sofia - BOS Boston Logan Intl

SOFBOS

Sofia

Tue 11/17

4:00 pm-6:05 pm

1 stop33h 05m

Boston Logan Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$808

SofiaBoston

SOF Sofia - BOS Boston Logan Intl

SOFBOS

Sofia

Mon 11/16

4:00 pm-6:05 pm

1 stop33h 05m

Boston Logan Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$808

SofiaBoston

SOF Sofia - BOS Boston Logan Intl

SOFBOS

Sofia

Thu 11/19

6:25 am-1:45 pm

1 stop14h 20m

Boston Logan Intl

Wed 12/2

8:40 pm-10:55 pm

1 stop19h 15m

$834

SofiaBoston

SOF Sofia - BOS Boston Logan Intl

SOFBOS

Sofia

Wed 1/13

6:25 am-1:45 pm

1 stop14h 20m

Boston Logan Intl

Thu 4/1

8:05 pm-6:45 pm

1 stop15h 40m

$835

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Sofia to Boston

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sofia to Boston in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sofia-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sofia-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sofia-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sofia-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sofia-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sofia to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Sofia with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Sofia to Boston

How far ahead should I book a flight from Sofia to Boston?

The price you pay for your flight from Sofia to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Sofia to Boston?

Currently, January is the cheapest month in which you can book a flight from Sofia to Boston (average of $680). Flying from Sofia to Boston in October is currently the most expensive (average of $1,119). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Boston

Read reviews from past customers who have flown KLM,Austrian Airlines, andTurkish Airlines from Sofia to Boston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Kushal,Sep 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Kushal,Sep 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Kushal,Sep 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Kushal,Sep 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Kushal,Sep 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Comfort

7.7

Boarding

7.8

Entertainment

7.2

Crew

8.4

Food

7.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Kushal,Sep 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Related info for your journey

  • How long is the flight from Sofia to Boston?

    United Airlines can get you from Sofia to Boston in just under 14h 20m. Your travel time can differ by up to . There are 4521 mi between Sofia and Boston.

  • What are the cheapest airlines flying from Sofia to Boston round-trip?

    KLM, at $624, was found to be the cheapest airline from Sofia to Boston.Alternate airlines to your destination round-trip include Lufthansa and Air France. KLM is priced at 25% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Sofia to Boston one-way?

    The cheapest airline one-way is SWISS, with whom users have recently found tickets for as low as $668. However, be on the lookout for offers from Turkish Airlines and Lufthansa, as they are both options that can get you from Sofia to Boston for a low price.

  • Can I find deals for flights from Sofia to Boston that include hotel bookings?

    Yes. In addition to deals on Sofia to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sofia to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sofia to Boston.

  • Can I find deals for business class flights from Sofia to Boston?

    Yes. Cheapflights offers flight deals from Sofia to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sofia to Boston?

    Currently, January is the cheapest month in which you can book a flight from Sofia to Boston (average of $680). Flying from Sofia to Boston in October is currently the most expensive (average of $1,119). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Waltham
Randolph
Concord
Cambridge
Brockton
Dedham
Cranston
Warwick
Pawtucket
Peabody
Fitchburg
Londonderry
York Beach
Revere
North Falmouth
Chelsea
Swansea
Braintree
Auburn
Sandwich

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Sofia to Boston

AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$624Average$785FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$667Average$809FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$682Average$842FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$706Average$749FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$733Average$808FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$753Average$801FlexibilityNo cancel feeOn-time69%

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